-76.47% is the change from 221 to 52
Calculation steps:
[( 52 - 221 ) ÷ 221] x 100 = -76.47%
Formula
Percentage change = [(52 - 221) / 221] x 100
Subtract the new number by the original number
52 - 221 = -169
-169 ÷ 221 = -0.7647058823529411
-0.7647058823529411 x 100 = -76.47%